Approximately 3.5 billion years of evolution has led to the extraordinarily varied microbial biodiversity that exists on our planet.  The genes of these myriad organisms represent one of the earth's greatest riches.  We have developed technologies to generate metagenomic libraries from diverse microbial habitats and to screen these libraries for novel enzymes.  Enzymes are of interest because they catalyze reactions with extremely large rate enhancements and can offer exquisite selectivity.  In this presentation I will describe some of our recent work on the discovery, evolution, and commercial application of a variety of enzyme products for use in animal feeds, human food, industrial processes, and pharmaceuticals.  By unlocking the secrets of untapped microbial genomes we have discovered new and versatile enzymes.  Realizing value from biodiversity makes for a sustainable business and also provides a compelling argument for the preservation of the world's natural habitats.